restructure settings code

cmd/web/handlers_user.go

@@ -147,7 +147,7 @@ func (app *application) putUserSettings(w http.ResponseWriter, r *http.Request)
 	}
 	form.CheckField(validator.PermittedValue(form.LocalTimezone, app.timezones...), "timezone", "Invalid value")
 	if !form.Valid() {
-		// rerender template with errors
+		// TODO: rerender template with errors
 		app.clientError(w, http.StatusUnprocessableEntity)
 	}
 	err = app.users.SetLocalTimezone(userId, form.LocalTimezone)

cmd/web/main.go

@@ -59,13 +59,19 @@ func main() {
 		sessionManager:    sessionManager,
 		websites:          &models.WebsiteModel{DB: db},
 		guestbooks:        &models.GuestbookModel{DB: db},
-		users:             &models.UserModel{DB: db},
+		users:             &models.UserModel{DB: db, Settings: make(map[string]models.Setting)},
 		guestbookComments: &models.GuestbookCommentModel{DB: db},
 		formDecoder:       formDecoder,
 		debug:             *debug,
 		timezones:         getAvailableTimezones(),
 	}
 
+	err = app.users.InitializeSettingsMap()
+	if err != nil {
+		logger.Error(err.Error())
+		os.Exit(1)
+	}
+
 	tlsConfig := &tls.Config{
 		CurvePreferences: []tls.CurveID{tls.X25519, tls.CurveP256},
 	}

db/create-settings-tables.sql

@@ -38,7 +38,7 @@ CREATE TABLE user_settings (
     Id integer primary key autoincrement,
     UserId integer NOT NULL,
     SettingId integer NOT NULL,
-    AllowedSettingValueId integer NOT NULL,
+    AllowedSettingValueId integer,
     UnconstrainedValue varchar(256),
     FOREIGN KEY (UserId) REFERENCES users(Id)
         ON DELETE RESTRICT
@@ -55,7 +55,7 @@ CREATE TABLE guestbook_settings (
     Id integer primary key autoincrement,
     GuestbookId integer NOT NULL,
     SettingId integer NOT NULL,
-    AllowedSettingValueId integer NOT NULL,
+    AllowedSettingValueId integer,
     UnconstrainedValue varchar(256),
     FOREIGN KEY (GuestbookId) REFERENCES guestbooks(Id)
         ON DELETE RESTRICT

internal/models/errors.go

@@ -3,9 +3,11 @@ package models
 import "errors"
 
 var (
-    ErrNoRecord = errors.New("models: no matching record found")
+	ErrNoRecord = errors.New("models: no matching record found")
 
-    ErrInvalidCredentials = errors.New("models: invalid credentials")
+	ErrInvalidCredentials = errors.New("models: invalid credentials")
 
-    ErrDuplicateEmail = errors.New("models: duplicate email")
+	ErrDuplicateEmail = errors.New("models: duplicate email")
+
+	ErrInvalidSettingValue = errors.New("models: invalid setting value")
 )

internal/models/guestbook.go

@@ -5,6 +5,14 @@ import (
 	"time"
 )
 
+type GuestbookSettings struct {
+	IsCommentingEnabled   bool
+	ReenableCommenting    time.Time
+	IsVisible             bool
+	FilteredWords         []string
+	AllowRemoteHostAccess bool
+}
+
 type Guestbook struct {
 	ID        int64
 	ShortId   uint64
@@ -13,6 +21,7 @@ type Guestbook struct {
 	Created   time.Time
 	Deleted   time.Time
 	IsActive  bool
+	Settings  GuestbookSettings
 }
 
 type GuestbookModel struct {
@@ -70,3 +79,47 @@ func (m *GuestbookModel) GetAll(userId int64) ([]Guestbook, error) {
 	}
 	return guestbooks, nil
 }
+
+func (m *GuestbookModel) initializeGuestbookSettings(guestbookId int64, settings UserSettings) error {
+	stmt := `INSERT INTO guestbook_settings (GuestbookId, SettingId, AllowedSettingValueId, UnconstrainedValue) VALUES 
+	(?, ?, ?, ?),
+	(?, ?, ?, ?),
+	(?, ?, ?, ?),
+	(?, ?, ?, ?),
+	(?, ?, ?, ?)`
+	_ = len(stmt)
+	return nil
+}
+
+func (m *GuestbookModel) UpdateSetting(guestbookId int64, value string) {
+	stmt := `UPDATE guestbook_settings SET
+		AllowedSettingValueId=IFNULL((SELECT Id FROM allowed_setting_values WHERE SettingId = guestbook_settings.SettingId AND ItemValue = ?), AllowedSettingValueId), 
+		UnconstrainedValue=(SELECT ? FROM settings WHERE settings.Id = guestbook_settings.SettingId AND settings.Constrained=0)
+	WHERE GuestbookId = ?
+		AND SettingId = (SELECT Id from Settings WHERE Description=?);`
+	_ = len(stmt)
+}
+
+func (m *GuestbookModel) SetCommentingEnabled(guestbookId int64, enabled bool) error {
+	return nil
+}
+
+func (m *GuestbookModel) SetReenableCommentingDate(guestbookId int64, reenableTime time.Time) error {
+	return nil
+}
+
+func (m *GuestbookModel) SetVisible(guestbookId int64, visible bool) error {
+	return nil
+}
+
+func (m *GuestbookModel) AddFilteredWord(guestbookId int64, word string) error {
+	return nil
+}
+
+func (m *GuestbookModel) RemoveFilteredWord(guestbookId int64, word string) error {
+	return nil
+}
+
+func (m *GuestbookModel) SetRemoteHostAccess(guestbookId int64, allowed bool) error {
+	return nil
+}

internal/models/settings.go

@@ -0,0 +1,223 @@
+package models
+
+import (
+	"database/sql"
+	"maps"
+	"strconv"
+	"time"
+)
+
+type SettingModel struct {
+	DB *sql.DB
+}
+
+type SettingConfig struct {
+}
+
+type SettingGroup int
+
+const (
+	SettingGroupUser      SettingGroup = 1
+	SettingGroupGuestbook SettingGroup = 2
+)
+
+type SettingDataType int
+
+const (
+	SettingTypeInt      SettingDataType = 1
+	SettingTypeDate     SettingDataType = 2
+	SettingTypeAlphanum SettingDataType = 3
+)
+
+type SettingValue struct {
+	Id                 int
+	SettingId          int
+	AllowedSettingId   int
+	UnconstrainedValue string
+}
+
+type AllowedSettingValue struct {
+	id        int
+	itemValue string
+	caption   string
+}
+
+func (s *AllowedSettingValue) Id() int {
+	return s.id
+}
+
+func (s *AllowedSettingValue) ItemValue() string {
+	return s.itemValue
+}
+
+func (s *AllowedSettingValue) Caption() string {
+	return s.caption
+}
+
+type Setting struct {
+	id               int
+	description      string
+	constrained      bool
+	dataType         SettingDataType
+	dataTypeDesc     string
+	settingGroup     SettingGroup
+	settingGroupDesc string
+	minValue         string // TODO: Maybe should be int?
+	maxValue         string
+	allowedValues    map[int]AllowedSettingValue
+}
+
+func (s *Setting) Id() int {
+	return s.id
+}
+
+func (s *Setting) Description() string {
+	return s.description
+}
+
+func (s *Setting) Constrained() bool {
+	return s.constrained
+}
+
+func (s *Setting) DataType() SettingDataType {
+	return s.dataType
+}
+
+func (s *Setting) SettingGroup() SettingGroup {
+	return s.settingGroup
+}
+
+func (s *Setting) MinValue() string {
+	return s.minValue
+}
+
+func (s *Setting) MaxValue() string {
+	return s.maxValue
+}
+
+func (s *Setting) AllowedValues() map[int]AllowedSettingValue {
+	result := make(map[int]AllowedSettingValue, 50)
+	maps.Copy(result, s.allowedValues)
+	return result
+}
+
+func (s *Setting) ValidateUnconstrained(value string) bool {
+	switch s.dataType {
+	case SettingTypeInt:
+		return s.validateInt(value)
+	case SettingTypeAlphanum:
+		return s.validateAlphanum(value)
+	case SettingTypeDate:
+		return s.validateDatetime(value)
+	}
+	return false
+}
+
+func (s *Setting) ValidateConstrained(value *AllowedSettingValue) bool {
+	_, exists := s.allowedValues[value.id]
+	if s.constrained && exists {
+		return true
+	}
+	return false
+}
+
+func (s *Setting) validateInt(value string) bool {
+	v, err := strconv.ParseInt(value, 10, 0)
+	if err != nil {
+		return false
+	}
+	var min int64
+	var max int64
+	if len(s.minValue) > 0 {
+		min, err = strconv.ParseInt(s.minValue, 10, 0)
+		if err != nil {
+			return false
+		}
+		if v < min {
+			return false
+		}
+	}
+	if len(s.maxValue) > 0 {
+		max, err = strconv.ParseInt(s.maxValue, 10, 0)
+		if err != nil {
+			return false
+		}
+		if v < max {
+			return false
+		}
+	}
+	return true
+}
+
+func (s *Setting) validateDatetime(value string) bool {
+	v, err := time.Parse(time.DateTime, value)
+	if err != nil {
+		return false
+	}
+	var min time.Time
+	var max time.Time
+
+	if len(s.minValue) > 0 {
+		min, err = time.Parse(time.DateTime, s.minValue)
+		if err != nil {
+			return false
+		}
+		if v.Before(min) {
+			return false
+		}
+	}
+	if len(s.maxValue) > 0 {
+		max, err = time.Parse(time.DateTime, s.maxValue)
+		if err != nil {
+			return false
+		}
+		if v.After(max) {
+			return false
+		}
+	}
+	return false
+}
+
+func (s *Setting) validateAlphanum(value string) bool {
+	return true
+}
+
+func (s Setting) Validate(value string) bool {
+	switch s.dataType {
+	case SettingTypeInt:
+		return s.validateInt(value)
+	case SettingTypeAlphanum:
+		return s.validateAlphanum(value)
+	case SettingTypeDate:
+		return s.validateDatetime(value)
+	}
+	return false
+}
+
+func validateSetting(db *sql.DB, settingId int, value string) (bool, error) {
+	stmt := `SELECT s.Id, Description, Constrained, DataType, SettingGroup, MinValue, MaxValue, a.Id 
+	FROM settings AS s LEFT JOIN allowed_setting_values AS a ON s.Id = a.SettingId AND a.ItemValue = ?
+	WHERE s.Id = ?`
+	result := db.QueryRow(stmt, value, settingId)
+
+	var s Setting
+	var minval sql.NullString
+	var maxval sql.NullString
+	var allowedId sql.NullInt64
+	err := result.Scan(&s.id, &s.description, &s.constrained, &s.dataType, &s.settingGroup, &minval, &maxval, &allowedId)
+	if err != nil {
+		return false, err
+	}
+	if s.constrained && allowedId.Valid {
+		return true, nil
+	}
+	switch s.dataType {
+	case SettingTypeInt:
+		return s.validateInt(value), nil
+	case SettingTypeAlphanum:
+		return s.validateAlphanum(value), nil
+	case SettingTypeDate:
+		return s.validateDatetime(value), nil
+	}
+	return false, nil
+}

internal/models/user.go

@@ -10,14 +10,14 @@ import (
 	"golang.org/x/crypto/bcrypt"
 )
 
-const (
-	u_timezone = 1
-)
-
 type UserSettings struct {
 	LocalTimezone *time.Location
 }
 
+const (
+	USER_TIMEZONE = "local_timezone"
+)
+
 type User struct {
 	ID             int64
 	ShortId        uint64
@@ -31,7 +31,40 @@ type User struct {
 }
 
 type UserModel struct {
-	DB *sql.DB
+	DB       *sql.DB
+	Settings map[string]Setting
+}
+
+func (m *UserModel) InitializeSettingsMap() error {
+	if m.Settings == nil {
+		m.Settings = make(map[string]Setting)
+	}
+	stmt := `SELECT settings.Id, settings.Description, Constrained, d.Id, d.Description, g.Id, g.Description, MinValue, MaxValue
+        FROM settings
+        LEFT JOIN setting_data_types d ON settings.DataType = d.Id
+        LEFT JOIN setting_groups g ON settings.SettingGroup = g.Id
+        WHERE SettingGroup = (SELECT Id FROM setting_groups WHERE Description = 'user' LIMIT 1)`
+	result, err := m.DB.Query(stmt)
+	if err != nil {
+		return err
+	}
+	for result.Next() {
+		var s Setting
+		var mn sql.NullString
+		var mx sql.NullString
+		err := result.Scan(&s.id, &s.description, &s.constrained, &s.dataType, &s.dataTypeDesc, &s.settingGroup, &s.settingGroupDesc, &mn, &mx)
+		if mn.Valid {
+			s.minValue = mn.String
+		}
+		if mx.Valid {
+			s.maxValue = mx.String
+		}
+		if err != nil {
+			return err
+		}
+		m.Settings[s.description] = s
+	}
+	return nil
 }
 
 func (m *UserModel) Insert(shortId uint64, username string, email string, password string, settings UserSettings) error {
@@ -54,13 +87,7 @@ func (m *UserModel) Insert(shortId uint64, username string, email string, passwo
 	if err != nil {
 		return err
 	}
-	settingsStmt := `INSERT INTO user_settings 
-		(UserId, SettingId, AllowedSettingValueId, UnconstrainedValue)
-		VALUES (?, ?, ?, ?)`
-	_, err = m.DB.Exec(settingsStmt, id, u_timezone, nil, settings.LocalTimezone.String())
-	if err != nil {
-		return err
-	}
+	err = m.initializeUserSettings(id, settings)
 	return nil
 }
 
@@ -174,7 +201,7 @@ func (m *UserModel) GetSettings(userId int64) (UserSettings, error) {
 			return settings, err
 		}
 		switch id {
-		case u_timezone:
+		case m.Settings[USER_TIMEZONE].id:
 			settings.LocalTimezone, err = time.LoadLocation(unconstrainedValue.String)
 			if err != nil {
 				panic(err)
@@ -184,9 +211,53 @@ func (m *UserModel) GetSettings(userId int64) (UserSettings, error) {
 	return settings, err
 }
 
-func (m *UserModel) SetLocalTimezone(userId int64, timezone string) error {
-	stmt := `UPDATE user_settings SET UnconstrainedValue = ? WHERE UserId = ?`
-	_, err := m.DB.Exec(stmt, timezone, userId)
+func (m *UserModel) initializeUserSettings(userId int64, settings UserSettings) error {
+	stmt := `INSERT INTO user_settings (UserId, SettingId, AllowedSettingValueId, UnconstrainedValue) 
+		VALUES (?, ?, ?, ?)`
+	_, err := m.DB.Exec(stmt, userId, m.Settings[USER_TIMEZONE].id, nil, settings.LocalTimezone.String())
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (m *UserModel) UpdateUserSettings(userId int64, settings UserSettings) error {
+	err := m.UpdateSetting(userId, m.Settings[USER_TIMEZONE], settings.LocalTimezone.String())
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (m *UserModel) UpdateSetting(userId int64, setting Setting, value string) error {
+	stmt := `UPDATE user_settings SET
+				AllowedSettingValueId=IFNULL(
+					(SELECT Id FROM allowed_setting_values WHERE SettingId = user_settings.SettingId AND ItemValue = ?), AllowedSettingValueId
+				),
+				UnconstrainedValue=(SELECT ? FROM settings WHERE settings.Id = user_settings.SettingId AND settings.Constrained=0)
+			WHERE userId = ?
+			AND SettingId = (SELECT Id from Settings WHERE Description=?);`
+	result, err := m.DB.Exec(stmt, value, value, userId, setting.description)
+	if err != nil {
+		return err
+	}
+	rows, err := result.RowsAffected()
+	if err != nil {
+		return err
+	}
+	if rows != 1 {
+		return ErrInvalidSettingValue
+	}
+	return nil
+}
+
+func (m *UserModel) SetLocalTimezone(userId int64, timezone string) error {
+	setting := m.Settings[USER_TIMEZONE]
+	valid := setting.Validate(timezone)
+	if !valid {
+		return ErrInvalidSettingValue
+	}
+	err := m.UpdateSetting(userId, setting, timezone)
 	if err != nil {
 		return err
 	}

ui/views/common_templ.go

@@ -1,6 +1,6 @@
 // Code generated by templ - DO NOT EDIT.
 
-// templ: version: v0.3.857
+// templ: version: v0.3.833
 package views
 
 //lint:file-ignore SA4006 This context is only used if a nested component is present.

ui/views/guestbooks_templ.go

@@ -1,6 +1,6 @@
 // Code generated by templ - DO NOT EDIT.
 
-// templ: version: v0.3.857
+// templ: version: v0.3.833
 package views
 
 //lint:file-ignore SA4006 This context is only used if a nested component is present.

ui/views/home_templ.go

@@ -1,6 +1,6 @@
 // Code generated by templ - DO NOT EDIT.
 
-// templ: version: v0.3.857
+// templ: version: v0.3.833
 package views
 
 //lint:file-ignore SA4006 This context is only used if a nested component is present.

ui/views/users_settings_templ.go

@@ -1,6 +1,6 @@
 // Code generated by templ - DO NOT EDIT.
 
-// templ: version: v0.3.857
+// templ: version: v0.3.833
 package views
 
 //lint:file-ignore SA4006 This context is only used if a nested component is present.

ui/views/users_templ.go

@@ -1,6 +1,6 @@
 // Code generated by templ - DO NOT EDIT.
 
-// templ: version: v0.3.857
+// templ: version: v0.3.833
 package views
 
 //lint:file-ignore SA4006 This context is only used if a nested component is present.

ui/views/websites_templ.go

@@ -1,6 +1,6 @@
 // Code generated by templ - DO NOT EDIT.
 
-// templ: version: v0.3.857
+// templ: version: v0.3.833
 package views
 
 //lint:file-ignore SA4006 This context is only used if a nested component is present.